A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content | Zendy

Aleksandar Grujić | Zendy; T. Žák | Zendy; N. Talijan | Zendy; Jasna Stajić-Trošić | Zendy; Vladan Ćosović | Zendy

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A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content

Author(s) -

Aleksandar Grujić,

T. Žák,

N. Talijan,

Jasna Stajić-Trošić,

Vladan Ćosović

Publication year - 2009

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos0903337g

Subject(s) - thermomagnetic convection , materials science , mössbauer spectroscopy , phase (matter) , squid , decomposition , analytical chemistry (journal) , thermal decomposition , stoichiometry , hysteresis , magnetic hysteresis , nuclear magnetic resonance , metallurgy , magnetization , condensed matter physics , crystallography , chemistry , magnetic field , ecology , physics , organic chemistry , chromatography , quantum mechanics , biology

Changes in the phase composition and magnetic properties of three types of commercial Nd-Fe-B alloys with different Nd content - low (10-12 wt%), near stoichiometric (21-25 wt%) and rich (26-29 wt%) caused by thermomagnetic analysis (TM) were observed in regard to optimal magnetic state. Phase compositions of investigated alloys before and after TM measurement up to 800°C were compared using 57Fe Mössbauer spectroscopy and X-Ray analysis. The TM measurements decompose all three materials and the main products of decomposition process α-Fe and Fe2B phase. Observed changes in structure and phase composition had direct influence on magnetic properties. Loss of magnetic properties induced by thermal decomposition is clearly illustrated on corresponding SQUID hysteresis loops

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